Improvement in slow-closing valves for water-closets



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CHARLES HARRISON,4 OF vNEIN YORK, Y.

Y Letters Patent No. 85,006, dated December 15, 1868,.

IMPROVEMENT IN SLOW-CLOSING- 'V'ALVES FOR- WATER-CLOSEIT.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may concern Be it known thatL I, CHARLES HARRISON, of thecity and State ofNw'Yoi-k, have invented and made a certain new anduseful Improvement in Cocks for Kater-Closets; and I do hereby declarethe following to be a full, clear, and exact description of the saidinvention, reference being had to the annexed drawing,- making part ofthis specification, wherein- Figure 1 is a vertical section of the saidcock as it is being opened;

Figure 2 is a plan of the piston detached from the barrel; and

Figure 3 is an elevation of the piston and valve separately.

Similar marks of'reference denote the same parts.'

I make use of a hollow cup-shaped metallic piston, to act upon water ina confined chamber, and control the gradual closing of thevalve, saidpiston being generally ofthe character shown in Letters Patent grantedto me, September l, 1868. The nature of my present improvement consistsin a grooved water-way, introduced in the edge of the metallic piston,so that a leakage will be produced that allows the water to pass fromone side to the other of Vthe piston, as the valve is opened or closed,so that the movement will be suiiiciently slow to allow the neces- .saryflow of water, and thevalve will not close with a tached to the hopperof the water-closet, or otherwise sustained.

The valve j' is lupon a stem, g, that is prolonged" 'metallic disk,surrounding the stem g, and 'acting against the water in the chamber n,to* control the closing of th e valve f, and prevent sudden concussionby the ram-action of the water.

In the edge of the piston m, I form a notch, as at o, that' allows thewater to pass into the chamber n, as the valve is being opened, asindicated bythe arrow, iig. 1. When thefpressure upon g to open thevalve f, is removed, the water gradually passes out of the chamber n,through the notch o, and allows the valve to close slowly, and withoutconcussion.

This character of valve for water-closets is not liable to becomeobstructed, and the parts are strong and durable; hence the valve is notlikelyto get out vof reair.

What I claim, and desire to secure by Letters Patent, is-

The metallic piston m, formed hollow, and provided with thenotch o, incombination with the valve f, seat d, cylinder a, and chamber rn., asand for the purposes specified.

In Witness whereof, -I have hereunto set my siguaf ture, this 3d day ofSeptember, AJ). 1868.

CHAS. HARRISON,

